Bump jackson-databind from 2.9.9 to 2.9.10.8 in /external-listeners

Bumps [jackson-databind](https://github.com/FasterXML/jackson) from 2.9.9 to 2.9.10.8.
- [Release notes](https://github.com/FasterXML/jackson/releases)
- [Commits](https://github.com/FasterXML/jackson/commits)

---
updated-dependencies:
- dependency-name: com.fasterxml.jackson.core:jackson-databind
  dependency-type: direct:production
...

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Author: dependabot[bot]

external-listeners/pom.xml

@@ -54,7 +54,7 @@
         <dependency>
             <groupId>com.fasterxml.jackson.core</groupId>
             <artifactId>jackson-databind</artifactId>
-            <version> 2.9.9</version>
+            <version> 2.9.10.8</version>
             <scope>runtime</scope>
         </dependency>